VideoHelp Forum

Our website is made possible by displaying online advertisements to our visitors. Consider supporting us by disable your adblocker or Try ConvertXtoDVD and convert all your movies to DVD. Free trial ! :)
+ Reply to Thread
Results 1 to 4 of 4
Thread
  1. Hi
    I've started using CRF to rip my Blurays but I can't seem to notice a difference if I use 3 or 16 B-Frames. So is there anyway to calculate how many B-frames are needed for the encode?
    Thanks
    Quote Quote  
  2. Look at the summary when you're done. But using more than 3 is asking for trouble (and usually a waste of time). Many devices don't support more than 3.

    A sample from the summary of a short encode with 16 bframes:

    Code:
    x264 [info]: consecutive B-frames: 12.3% 27.6% 59.3%  0.8%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%
    12.3 percent of the time it used 0 bframes
    27.6 percent of the time it used 1 bframes
    59.3 percent of the time it used 2 bframes
    etc.
    Last edited by jagabo; 14th Feb 2012 at 08:41.
    Quote Quote  
  3. Banned
    Join Date
    Oct 2004
    Location
    Freedonia
    Search Comp PM
    You are encoding. You are not "ripping". Using the correct term not only keeps you from looking like a moron, it allows people to help you correctly.
    Quote Quote  
  4. Originally Posted by jagabo View Post
    Look at the summary when you're done. But using more than 3 is asking for trouble (and usually a waste of time). Many devices don't support more than 3.

    A sample from the summary of a short encode with 16 bframes:

    Code:
    x264 [info]: consecutive B-frames: 12.3% 27.6% 59.3%  0.8%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%  0.0%
    12.3 percent of the time it used 1 bframe
    27.6 percent of the time it used 2 bframes
    59.3 percent of the time it used 3 bframes
    etc.
    Thanks. I'm only using ~2000 bitrate so more than 3 will be useless i think. That's why i can't tell the difference between 3 or 16 because there isn't much.
    Quote Quote  



Similar Threads